Public bug reported:
Binary package hint: linux-image-2.6.38-7-server
Hi,
I'm using lucid with a 2.6.38 kernel from the kernel ppa.
My host is mainly running some KVM VMs (windows and linux right now)
some Linux with virtio and some Linux without (the windows does not use
virtio).
At the time this happened, other PC was running rsync against a virtio
(virtio-net and virtio-blk) guest (it is a backup)
This has happened before with a 2.6.31 kernel from Ubuntu 9.10 too.
Here is the backtrace in the host:
Mar 30 04:49:17 hydra kernel: [58376.960065] ------------[ cut here
]------------
Mar 30 04:49:17 hydra kernel: [58376.960076] WARNING: at
/build/buildd/linux-lts-backport-natty-2.6.38/net/sched/sch_generic.c:256
dev_watchdog+0x293/0x2a0()
Mar 30 04:49:17 hydra kernel: [58376.960080] Hardware name: System Product Name
Mar 30 04:49:17 hydra kernel: [58376.960083] NETDEV WATCHDOG: eth0 (ATL1E):
transmit queue 0 timed out
Mar 30 04:49:17 hydra kernel: [58376.960085] Modules linked in: kvm_intel kvm
bridge stp i915 drm_kms_helper drm coretemp psmouse i2c_algo_bit lp ppdev
serio_raw asus_atk0110 parport_pc video parport joydev raid10 raid456 async_pq
async_xor usbhid hid xor async_memcpy async_raid6_recov atl1e raid6_pq async_tx
raid1 raid0 multipath linear
Mar 30 04:49:17 hydra kernel: [58376.960121] Pid: 0, comm: kworker/0:1 Not
tainted 2.6.38-7-server #37~lucid1-Ubuntu
Mar 30 04:49:17 hydra kernel: [58376.960124] Call Trace:
Mar 30 04:49:17 hydra kernel: [58376.960127] <IRQ> [<ffffffff81064f8f>] ?
warn_slowpath_common+0x7f/0xc0
Mar 30 04:49:17 hydra kernel: [58376.960139] [<ffffffff8140c2d6>] ?
ata_sg_clean+0x66/0xd0
Mar 30 04:49:17 hydra kernel: [58376.960143] [<ffffffff81065086>] ?
warn_slowpath_fmt+0x46/0x50
Mar 30 04:49:17 hydra kernel: [58376.960148] [<ffffffff814fd113>] ?
dev_watchdog+0x293/0x2a0
Mar 30 04:49:17 hydra kernel: [58376.960153] [<ffffffff8142189b>] ?
ata_hsm_qc_complete+0x4b/0x130
Mar 30 04:49:17 hydra kernel: [58376.960158] [<ffffffff81013e23>] ?
native_sched_clock+0x13/0x60
Mar 30 04:49:17 hydra kernel: [58376.960163] [<ffffffff81013249>] ?
sched_clock+0x9/0x10
Mar 30 04:49:17 hydra kernel: [58376.960167] [<ffffffff8108d265>] ?
sched_clock_local+0x25/0x90
Mar 30 04:49:17 hydra kernel: [58376.960172] [<ffffffff814fce80>] ?
dev_watchdog+0x0/0x2a0
Mar 30 04:49:17 hydra kernel: [58376.960176] [<ffffffff814fce80>] ?
dev_watchdog+0x0/0x2a0
Mar 30 04:49:17 hydra kernel: [58376.960180] [<ffffffff81073802>] ?
call_timer_fn+0x42/0x120
Mar 30 04:49:17 hydra kernel: [58376.960184] [<ffffffff814fce80>] ?
dev_watchdog+0x0/0x2a0
Mar 30 04:49:17 hydra kernel: [58376.960188] [<ffffffff81074c34>] ?
run_timer_softirq+0x144/0x260
Mar 30 04:49:17 hydra kernel: [58376.960193] [<ffffffff81091019>] ?
ktime_get+0x69/0x100
Mar 30 04:49:17 hydra kernel: [58376.960198] [<ffffffff8106beeb>] ?
__do_softirq+0xab/0x200
Mar 30 04:49:17 hydra kernel: [58376.960202] [<ffffffff810963ef>] ?
tick_program_event+0x1f/0x30
Mar 30 04:49:17 hydra kernel: [58376.960206] [<ffffffff8100cf5c>] ?
call_softirq+0x1c/0x30
Mar 30 04:49:17 hydra kernel: [58376.960210] [<ffffffff8100e9c5>] ?
do_softirq+0x65/0xa0
Mar 30 04:49:17 hydra kernel: [58376.960214] [<ffffffff8106bdb5>] ?
irq_exit+0x85/0x90
Mar 30 04:49:17 hydra kernel: [58376.960219] [<ffffffff815dcd10>] ?
smp_apic_timer_interrupt+0x70/0x9b
Mar 30 04:49:17 hydra kernel: [58376.960223] [<ffffffff8100ca13>] ?
apic_timer_interrupt+0x13/0x20
Mar 30 04:49:17 hydra kernel: [58376.960226] <EOI> [<ffffffff81014fbd>] ?
mwait_idle+0x8d/0x140
Mar 30 04:49:17 hydra kernel: [58376.960234] [<ffffffff815d8ada>] ?
atomic_notifier_call_chain+0x1a/0x20
Mar 30 04:49:17 hydra kernel: [58376.960239] [<ffffffff8100b067>] ?
cpu_idle+0xb7/0x110
Mar 30 04:49:17 hydra kernel: [58376.960244] [<ffffffff815cc06f>] ?
start_secondary+0xc2/0xc4
Mar 30 04:49:17 hydra kernel: [58376.960248] ---[ end trace 5242b4dbc66ce661
]---
Mar 30 04:49:17 hydra kernel: [58377.000340] ATL1E 0000:01:00.0: eth0: NIC Link
is Up <100 Mbps Full Duplex>
Also, there's nothing weird in the guest's syslog/kern.log
And here is more information:
root@hydra:/var/log# uname -a
Linux hydra 2.6.38-7-server #37~lucid1-Ubuntu SMP Mon Mar 21 18:38:53 UTC 2011
x86_64 GNU/Linux
root@hydra:/var/log# cat /proc/version_signature
Ubuntu 2.6.38-7.37~lucid1-server 2.6.38
lsb_release -rd
Description: Ubuntu 10.04.2 LTS
Release: 10.04
root@hydra:/var/log# apt-cache policy linux-image-`uname -r`
linux-image-2.6.38-7-server:
Installed: 2.6.38-7.37~lucid1
Candidate: 2.6.38-7.39~lucid1
Version table:
2.6.38-7.39~lucid1 0
500 http://ppa.launchpad.net/kernel-ppa/ppa/ubuntu/ lucid/main Packages
*** 2.6.38-7.37~lucid1 0
100 /var/lib/dpkg/status
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/745747
Title:
NETDEV WATCHDOG: eth0 (ATL1E): transmit queue 0 timed out
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